Recessed Lights / Box Volume Size

Hey,
I'm located in Ontario/Canada and I'm in the process of installing some recessed lights in my uninsulated basement. I was going through the electrical code and noticed that in an 8in^3 electrical box, it is only permitted to have 2 wires and 2 wire nuts.

I have 3 wire nuts (ground, neutral and hot) and two wires coming into each switch.

It seams odd that the light box would not be sized correctly considering its CSA approved. Have any of you come across a similar problem ?

As a side note, I'm also finding it hard to jam 6-8in of cable and 3 wire nuts in this small box !